Yellow Cupcakes with Chocolate Ganache Frosting
Tender, buttery yellow cupcakes topped with silky chocolate ganache. This classic pairing combines a moist vanilla-sour cream cake with rich semi-sweet chocolate frosting. Perfect for celebrations, bake sales, or everyday indulgence. The sour cream adds subtle tanginess and keeps the cake tender, while the ganache provides professional-looking shine and deep chocolate flavor.
Ingredients
- ¾ cup butter, at room temperature
- 1 ½ cup sugar, granulated
- 3 eggs, at room temperature
- 2 teaspoon vanilla extract
- 1 ¼ cup sour cream, at room temperature
- 2 ½ cup cake flour, siftedall-purpose flour1:1 with 2 tbsp cornstarch per cuptexture
reduces protein slightly for tenderness
Full guide → - 2 teaspoon baking powder
- ½ teaspoon baking soda
- ¼ teaspoon salt
- 12 ounce semi-sweet chocolate, choppeddark chocolate1:1flavor
increases richness and bitterness
- 1 ½ cup heavy cream
- 6 tablespoon butter
Instructions
- 1
Preheat oven to 350F and line two muffin tins with paper liners.
- 2
Cream butter and sugar until light and fluffy using a stand mixer with paddle attachment.
- 3
Add eggs one at a time, scraping bowl sides between additions.
- 4
Mix in vanilla and sour cream until well incorporated.
- 5
Sift dry ingredients together and add to mixer on low speed until just combined.
- 6
Scrape bowl with rubber spatula to ensure all flour is incorporated.
- 7
Divide batter evenly among muffin cups, filling each about three-quarters full.
- 8
Bake until a toothpick inserted in the center comes out clean.
- 9
Cool cupcakes in tins on wire racks, then remove when completely cooled.
- 10
Place chopped chocolate in a heat-safe bowl.
- 11
Heat cream until steaming, then pour over chocolate and let sit one minute.
- 12
Stir in butter and whisk until smooth and glossy.
- 13
Cool frosting until spreadable consistency, then frost cupcakes as desired.
Tips
Bring all ingredients to room temperature before mixing for better emulsification and a finer crumb structure.
Don't overmix the batter after adding flour; mix only until combined to avoid dense, tough cupcakes.
Ganache thickness depends on room temperature; if too thin, chill briefly; if too thick, rewarm gently over low heat.
Good to Know
Store cooled cupcakes in an airtight container at room temperature for up to 3 days, or refrigerate for up to 5 days. Ganache-frosted cupcakes firm slightly when chilled.
Bake cupcakes up to 2 days ahead; store unfrosted in an airtight container. Make ganache frosting up to 1 day ahead and refrigerate; gently reheat before piping.
Serve at room temperature for best flavor and texture. Bring chilled cupcakes to room temperature 30 minutes before serving for optimal ganache flow.
Common Mistakes
Don't use cold eggs or sour cream; they prevent proper emulsification and result in curdled batter.
Don't overmix dry ingredients to avoid developing gluten and making cupcakes tough and dense.
Don't frost warm cupcakes; ganache will melt and slide off.
Substitutions
Dairy-Free Swaps
General Alternatives
reduces protein slightly for tenderness
Full guide →FAQ
Can I make these cupcakes without a stand mixer?
Yes. Use a handheld electric mixer or whisk by hand. Cream butter and sugar for 5-7 minutes until pale. Cream method takes longer manually but yields identical results. Ensure ingredients are at room temperature.
What if my ganache is too thin or too thick?
Too thin ganache: refrigerate 15-30 minutes until thickened. Too thick ganache: place bowl over warm water and stir gently until spreadable. Alternatively, stir in a teaspoon of cream at a time until desired consistency.
How long can I keep frosted cupcakes and can I freeze them?
Frosted cupcakes keep 3 days at room temperature or 5 days refrigerated in an airtight container. Freeze unfrosted cupcakes up to 3 months; thaw at room temperature before frosting. Freeze frosted cupcakes up to 1 month.